don_gallagher

<p>It may be due to low humidity. I have "loosened" strongly curled negatives by treatment in a little humidity chamber I made out of a plastic storage box. You have to be careful not to overdue it and let the negatives get wet or sticky, but a humidified negative is less taught when being fit into a holder. I get the box to ~ 50% relative humidity with a brief filling from a humidifier, then let the negatives sit for awhile. You will want to scan relatively quickly once you take the negative out of the chamber because as the negative dries out it will curl back.</p>